ASTM A588 Qib A thiab ASTM A633 Qib A yog siab -Lub zog qis-Alloy (HSLA) cov qauv hlau, tab sis A588 yog ib qhohuab cua steelrau corrosion kuj (xws li txuas hniav, corten), thaum A633 yog anormalized hlaurau qhov zoo qis- kub toughness (xws li pib thav duab, offshore qauv), sib txawv nyob rau hauv muaj pes tsawg leeg thiab ua rau lawv cov kev xav tau tshwj xeeb sab nraum zoov / toughness, txawm hais tias ob leeg muaj lub zog zoo.
Tshuaj muaj pes tsawg leeg ntawm A588 Qib A
ASTM A588 Tshuaj muaj pes tsawg leeg | |||||||
Qib | Cov ntsiab lus Max (%) | ||||||
C | Si | Mn | P | S | Ni | Nb | |
A588 | 0.19 | 0.30-0.65 | 0.80-1.25 | 0.04 | 0.05 | 0.40 | .. |
Cu | Cr | Mo | N | V |
|
| |
0.25-0.40 | 0.40-0.65 | … | 0.01 | 0.02-0.10 |
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| |
Tshuaj muaj pes tsawg leeg ntawm A633 Qib A
C | Si | Mn | P | S | Al (min) | N |
0.18 | 0.15-0.50 | 1.00-1.35 | 0.035 | 0.04 |
|
|
Cr | Cu | Mo | Nb | Ni | Ti | V |
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| 0.05 |
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|
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Mechanical zog ntawm A588 Qib A
Mechanical Property ntawm A588 Qib A steel phaj | A588 Qib A |
Tensile zog, kis [MPa] | Tensile zog, kis [MPa] |
100mm los yog qis dua | [485] |
100mm-125mm | [460] |
125mm-200mm | [435] |
Yield zog, min, kis [MPa] | Yield zog, min, kis [MPa] |
100mm los yog qis dua | [345] |
100mm-125mm | [315] |
125mm-200mm | [290] |
Elongation hauv qab. [50 hli], min, % | 21 |
Elongation hauv qab. [50 hli-200mm], min, % | 18 |
Mechanical zog ntawm A633 Qib A
Kub | -35 | -20 | 0 | 25 |
Notch Impact Test. Min. absorbed zog J | 41 | 54 | 61 | 68 |
Nominal thickness (hli) | rau 65 | 65 - 100 | 100 - 150 |
ReH - Yam tsawg kawg nkaus tawm lub zog (MPa) | 290 | 290 |
|
Nominal thickness (hli) | rau 65 | 65- 100 | 100-150 |
Rm -Tensile zog (MPa) | 430-570 | 430-570 |
|
Ntsuas Length (mm) | 200 | 50 |
A - Yam tsawg kawg elongation Lo=5,65 √ Li ntawd (%) Longitudinal |
18 |
23 |
ASTM A588 Qib A (Wathering Steel)
Lub Hom Phiaj: Tsim los rau atmospheric corrosion kuj, ua kom ruaj khov, xeb{{0}zoo li txheej tiv thaiv (patina) thaum raug huab cua.
Cov yam ntxwv tseem ceeb: muaj tooj liab, chromium, thiab npib tsib xee rau kev tiv thaiv corrosion zoo dua; Feem ntau siv tsis pleev xim (Corten steel).
Daim ntawv thov: choj, ncej ncej, guardrails, vaj tse.
ASTM A633 Qib A (Normalized Steel)
Lub Hom Phiaj: Muab cov ntawv zoo toughness ntawm qhov kub thiab txias.
Cov yam ntxwv tseem ceeb: Kev kho cua sov li qub rau cov qauv ua kom zoo dua qub, txhim kho kev cuam tshuam lub zog.
Daim ntaub ntawv: Automotive thav duab, kev siv cov qauv siv nyob qhov twg toughness ntawm txias txias yog qhov tseem ceeb.
Qhov Tseem Ceeb Qhov Sib Txawv Zoo Tshaj
A588 (Weathering): Corrosion-focused, forms patina, for exposed structures.
A633 (Normalized): Toughness - tsom, tshwj xeeb tshaj yog nyob rau hauv txias, rau tsheb / marine.
Ob leeg muaj lub zog siab, tab sis lawv qhov tshwj xeeb alloying thiab kev kho mob tailor lawv rau txawv kev xav tau nyob rau hauv hnyav ib puag ncig.
